On rotten logs, quite common in the east.

On rotten logs, Fredericton, N.B. (Prof. Fowler.) Along Jupiter River, Anticosti; by Otter Pond, near Brackley Point, Prince Edward Island; Pirate's Cove, Canso, N.S.; abundant on dead wood at Baddeck and Margaree, Cape Breton Island, N.S., July, 1898; Mount Albert and along Ste. Anne des Monts River, Gaspé Co., Que.; in woods at Ottawa, Ont.; common at Belleville, Hastings Co., Ont, July 20th, 1867; on Pelee Island, Lake Erie and at Owen Sound, Ont.; quite common on old logs in Algonquin Park, Ont., June, 1900. (Macoun.)

118. C. media, Lindb.

C. multiflora, Spruce; Pearson's List, Can. Hep. p. 9.

On rotten wood, very common from the Atlantic to the Pacific.

Labrador. Collected by Waghorne. (Underwood.) Miquelon Island, Gulf St. Lawrence. (Delàmare.) South West Point and St. Mary's River, Anticosti; on rotten wood and peat, Cape

Breton Island, N.S., July, 1898; Pirate's Cove, Canso, N.S.; surface of a bog and on dead wood, Otter Pond, Prince Edward Island; very common on dead wood around Ottawa, Ont.; common at Belleville, Hastings Co., Ont., June 16th, 1865; North Bay, Lake Nipissing, Algoma; very common on old logs, Algonquin Park, Ont., June, 1900; on shaded, moist, perpendicular rocks, Otter Head, Lake Superior; on earth in a swamp, Nipigon River and on rotten wood, Thunder Bay, Lake Superior; on old logs, Hector, Rocky Mountains; on earth and old logs, Lake Louise, and on rotten wood at Lake Agnes, Laggan, Rocky Mountains; on old logs and stumps at Revelstoke, Columbia River, B.C.; on earth in the Eagle Pass, B.C.; on earth, at Sicamous, B.C.; on rotten wood at Quesnel, Fraser River, B.C.; on rotten wood at Hastings, Burrard Inlet, B.C.; on old logs on Cedar Hill, Goldstream and Parson's Mountain, near Victoria and on rotten wood at Comox, Vancouver Island. (Macoun.) On old logs, Chilliwack Lake, B.C. (J. M. Macoun.) Douglas Island, Orca, Columbia Fiord, Farragut Bay and Yakutat Bay Alaska. (Evans.) Salmon Creek, near Juneau, Alaska. (Miss G. Cooley.) Scoresby Sound, East Greenland. (C.Jansen.)

119. c. catenulata, (Huben) Lindb.

On rotten wood, Otter Pond, Prince Edward Island; on old logs, Baddeck, Cape Breton Island, N.S., July 8th, 1898; on rotten wood at Truro, N.S.; on old logs along the Gaspé coast and along the Ste. Anne des Monts River, Gaspé Co., Que.; on old logs at Ottawa, Ont., on burnt logs, Sudbury Junction, Algoma; on rotten wood at Belleville, Hastings Co., Ont., 1867; not rare on old logs in Algonquin Park, Ont., June, 1900; shores of Lake Superior, 1869; on old logs. Peace River, Lat. 56o; on rotten logs, Quesnel, Fraser River, B.C., 1872 and 1875; on rotten wood, Salt.Spring Island Gulf of Georgia, B.C.; on rotten wood, Cedar Hill and Goldstream, near Victoria and at Comox, Vancouver Island. (Macotin.)

120. C. bicuspidata, (Linn.) Dumort.

C. Lammersiana, Pearson's List, No. 39.

C. externa, Pearson's List, No. 40.

Greenland. (Vahl.) Labrador. Collected by Waghorne. (Underwood.) Miquelon Island, Gulf of St. Lawrence. (Deldmare.)

On earth at Rustico, Brackley Point and Black River, Prince Edward Island; on earth at Jupiter River, Anticosti; on rotten wood, earth and rocks, Cape Breton Island, N.S., July, 1898; on earth, Pirate's Cove, N.S., July, 1883; on rotten wood at Ottawa, Ont.; on rotten logs in a swamp near railway station, Belleville, Ont., May 16th, 1869; on earth, White Trout Lake, Algonquin Park, Ont., July 18th, 1900; on earth, North Bay, Lake Nipissing, Algoma; on rotten wood, Roger's Pass, Selkirk Mountains, B.C., Aug. 24th, 1885; on earth, Eagle Pass, B.C., 1889; mountains north of Griffin Lake, B.C., 1889; quite common on old logs at Hastings, B.C., April, 1889; Mount Finlayson, near Victoria; on old logs at Shawnigan Lake, at Sea's farm, Victoria, and very common at Goldstream, Vancouver Island; on dead wood at Comox, Vancouver Island. (Macoun.) Mount Queest, Shuswap Lake, B.C. (J. M. Macoun.) Sitka, Mt. Vers-tovia, Juneau, Hidden Glacier Inlet, Orca, Columbia Fiord, Far-rugut Bay, Yakutat Bay, Kadiak Island and Attu Island, Alaska. (Evans.) Scoresby Sound, East Greenland. (C.Jansen.)

121. C. pleniceps, (Aust.) Lindb.

On rotten wood and on stones in woods at Ottawa, Ont.; on moss near the snow line (alt. 7,500 feet) at Hector, Rocky Mountains; on rotten wood at Cedar Hill, Victoria, and on old logs at Nanaimo, Vancouver Island. (Macoun) Scoresby Sound, East Greenland. (C.Jansen)

122. C. fluitans, (Nees) Spruce.

Labrador. Collected by Waghorne (Underwood.) Miquelon Island, Gulf of St. Lawrence. (Delaware) Floating in water in a Sphagnum swamp, Salt Lake, Anticosti, Aug. 10th, 1883; in a peat bog at Brule Lake, Algonquin Park, Ont., June 13th, 1900; in a peat bog near New Westminister Junction, B.C. (Macoun.

123. C. divaricata, (Smith) Dumort.

In wet places, Greenland. (Dr. Rosenvinge.) Labrador. Collected by Waghorne. (Underwood) On damp rocks at Yarmouth, N.S., June 24th, 1882; on damp rocks, Sudbury Junction, Algoma; on damp rocks, Otter Head, Lake Superior, July 28th, 1869; on rocks, Nipigon River, Ont.; on wet rocks, House Mountain, Lesser Slave Lake, Atha.; on rocks, Parson's Mountain, Cedar Hill, and Sea's farm, near Victoria, Vancouver island; at Comox, V.I. (Macoun) On stones, Mount Queest, Shuswap Lake, B.C. (J. M. Macoun.) Cascade Mountains, British Columbia. (Lyall.) Unalaska, Alaska. (Evans.) Scoresby Sound and Hold-with-Hofe, East Greenland. (C.Jansen.)

124. C. Macounii, Aust.

On rotting logs of Ulmus Americana, in Barlow's swamp, Belleville, Hastings Co., Ont., May 20th, 1865; on dead wood, Michi-picoten Island, Lake Superior; on old logs, Roger's Pass, Selkirk Mountains, B.C.; at Revelstoke, Columbia River, B.C. (Macoun)

125. C. Sullivantii, Aust.

On old elm logs in swamps east of Belleville, Hastings Co., Ont., May nth, 1866. (Macoun)

126. C. minima, Aust.

Growing on rotten wood and old logs in swamps at Belleville, Hastings Co., Ont., May, 1868. (Macoun)

127. C. dentata, (Raddi) Lindb.

Galton Mountains, British Columbia. (Lyall)

128. C. leucantha, Spruce. Columbia Fiord, Alaska. (Evans.)